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CVE-2022-28766

DLL injection in Zoom Windows Clients

HIGH
7.3
CVSS Score
Published: November 17, 2022 at 10:36 PM UTC
Updated: June 17, 2026 at 04:38 AM UTC
5 products affected across 2 vendorsRoomsMeetingsZoom Rooms

Using Zoom Client for Meetings for Windows (32-bit) by Zoom Video Communications Inc?

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Severity
HIGH7.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Windows 32-bit versions of the Zoom Client for Meetings before 5.12.6 and Zoom Rooms for Conference Room before version 5.12.6 are susceptible to a DLL injection vulnerability. A local low-privileged user could exploit this vulnerability to run arbitrary code in the context of the Zoom client.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Meetings· Zoom
95%
v < 5.12.6
Affected range stops below 5.12.6, so it looks safe — our inference, not a vendor statement
Rooms· Zoom
95%
v < 5.12.6
Affected range stops below 5.12.6, so it looks safe — our inference, not a vendor statement
Meetings Client· Zoom Video Communications
60%
v < 5.12.6
Affected range stops below 5.12.6, so it looks safe — our inference, not a vendor statement
Zoom Rooms· Zoom Video Communications
60%
v < 5.12.6
Affected range stops below 5.12.6, so it looks safe — our inference, not a vendor statement
Zoom VDI Client· Zoom Video Communications
60%
v < 5.12.6
Affected range stops below 5.12.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://explore.zoom.us/en/trust/security/security-bulletin/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94CWE-427

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